智能变电站信息实时性研究
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摘要
笔者根据IEC61850标准,分析了智能变电站中的各种数据,将各种数据进行归纳,并运用数学模型进行建模描述。在运用OPNET Modeler软件的基础上,对D2-1型智能变电站展开研究,对站内不同信息运用优先级标签技术,对变电站采用虚拟局域网技术进行划分。对典型星型网络拓扑结构采用VLAN技术划分,分析划分前后交换机工作负荷变化及对信息传输实时性的影响。对不同信息进行优先级等级设置,而后在交换机中设置优先级调度算法。仿真结果表明,优先级标签技术可减少高优先级报文的传输时延。对智能变电站通信网络进行VLAN划分是可行且必要的,它可有效将采样广播信息抑制在本间隔内,达到减少交换机的工作负荷,降低以太网信息传输时延,从而能进一步满足IEC61850标准对变电站信息传输时延的要求。
According to IEC61850 standard, all kinds of data in intelligent substation are analyzed and summarized, and uses the mathematics model to carry on the modeling description. Based on the application of OPNET Modeler software, Research on D2-1 intelligent substation, and the priority tag technology was applied to different information in the station and VLAN technology was used to divide the substation. In this paper, the typical star network topology is divided by VLAN technology, and the change of switch workload before and after the division and its impact on real-time information transmission are analyzed. The priority level of different information is set, and then the priority scheduling algorithm is set in the switch. Simulation results show that the priority label technology can reduce the transmission delay of high priority messages. It is feasible and necessary to divide the intelligent substation communication network into VLAN, which can effectively suppress the sampled broadcast information within this interval, reduce the workload of the switch and reduce the Ethernet information transmission delay, so as to further meet the requirements of IEC61850 standard for substation information transmission delay.
According to IEC61850 standard, all kinds of data in intelligent substation are analyzed and summarized, and uses the mathematics model to carry on the modeling description. Based on the application of OPNET Modeler software, Research on D2-1 intelligent substation, and the priority tag technology was applied to different information in the station and VLAN technology was used to divide the substation. In this paper, the typical star network topology is divided by VLAN technology, and the change of switch workload before and after the division and its impact on real-time information transmission are analyzed. The priority level of different information is set, and then the priority scheduling algorithm is set in the switch. Simulation results show that the priority label technology can reduce the transmission delay of high priority messages. It is feasible and necessary to divide the intelligent substation communication network into VLAN, which can effectively suppress the sampled broadcast information within this interval, reduce the workload of the switch and reduce the Ethernet information transmission delay, so as to further meet the requirements of IEC61850 standard for substation information transmission delay.
引文
[1]张沛超,高翔.智能变电站[J].电气技术,2010(8):4-10.
[2]李红军,刘亚磊.智能变电站一次设备新技术[J].电气技术,2015(12):119-123.
[3]马涛,武万才,冯毅.智能变电站继电保护设备的运行和维护[J].电气技术,2015(06):130-131,134.
[4]高会生,靳玮玮.基于OPNET的变电站端对端通信实时性仿真研究[J].继电器,2006(19):33-37.
[5]王金凤.基于OPNET的智能变电站通信网络研究[D].沈阳:沈阳理工大学,2015:362.
[6]吴在军,胡敏强,杜炎森.变电站通信网络实时性能仿真分析[J].电力系统自动化,2005(8):45-49.
[7]方晓洁,季夏轶,卢志刚.基于OPNET的数字化变电站继电保护通信网络仿真研究[J].电力系统保护与控制,2010,38(23):137-140.
[8]李晶.基于以太网的变电站实时通信研究[D].湘潭:湘潭大学,2008:245.
[9]辛建波,段献忠.基于优先级标签的变电站过程层交换式以太网的信息传输方案[J].电网技术,2004(22):26-30,47.
[10]窦晓波,胡敏强,吴在军,等.数字化变电站通信网络性能仿真分析[J].电网技术,2008(17):98-104.
[11]丁腾波,林亚男,赵萌.智能变电站虚拟局域网逻辑结构划分方案的研究[J].电力系统保护与控制,2012,40(1):115-119,155.
[12]邹俊雄,黄成巧,张延旭,等.智能变电站通信网络虚拟局域网建模与优化配置方法[J].电力自动化设备,2015,35(8):137-142.
[13]王海柱,蔡泽祥,张延旭,等.提升智能变电站信息流实时性和可靠性的定质交换技术[J].电力自动化设备,2014,34(5):156-162,168.
[14]胡严,张光昭.重尾ON/OFF源模型生成自相似业务流研究[J].电路与系统学报,2001(3):72-76,15.
[15]丁津津,高博,刘宁宁,等.智能变电站网络结构分析与VLAN划分方式探讨[J].合肥工业大学学报(自然科学版),2013,36(3):287-291.
[16]张志丹,黄小庆,曹一家,等.基于虚拟局域网的变电站综合数据流分析与通信网络仿真[J].电网技术,2011,35(5):204-209.
[17]嵇建飞,袁宇波,王立辉,等.某110 kV智能变电站合并单元异常情况分析及对策[J].电工技术学报,2015,30(16):255-260.
[18]沈鑫剡.路由和交换技术[M].北京:清华大学出版社,2013:122.
[2]李红军,刘亚磊.智能变电站一次设备新技术[J].电气技术,2015(12):119-123.
[3]马涛,武万才,冯毅.智能变电站继电保护设备的运行和维护[J].电气技术,2015(06):130-131,134.
[4]高会生,靳玮玮.基于OPNET的变电站端对端通信实时性仿真研究[J].继电器,2006(19):33-37.
[5]王金凤.基于OPNET的智能变电站通信网络研究[D].沈阳:沈阳理工大学,2015:362.
[6]吴在军,胡敏强,杜炎森.变电站通信网络实时性能仿真分析[J].电力系统自动化,2005(8):45-49.
[7]方晓洁,季夏轶,卢志刚.基于OPNET的数字化变电站继电保护通信网络仿真研究[J].电力系统保护与控制,2010,38(23):137-140.
[8]李晶.基于以太网的变电站实时通信研究[D].湘潭:湘潭大学,2008:245.
[9]辛建波,段献忠.基于优先级标签的变电站过程层交换式以太网的信息传输方案[J].电网技术,2004(22):26-30,47.
[10]窦晓波,胡敏强,吴在军,等.数字化变电站通信网络性能仿真分析[J].电网技术,2008(17):98-104.
[11]丁腾波,林亚男,赵萌.智能变电站虚拟局域网逻辑结构划分方案的研究[J].电力系统保护与控制,2012,40(1):115-119,155.
[12]邹俊雄,黄成巧,张延旭,等.智能变电站通信网络虚拟局域网建模与优化配置方法[J].电力自动化设备,2015,35(8):137-142.
[13]王海柱,蔡泽祥,张延旭,等.提升智能变电站信息流实时性和可靠性的定质交换技术[J].电力自动化设备,2014,34(5):156-162,168.
[14]胡严,张光昭.重尾ON/OFF源模型生成自相似业务流研究[J].电路与系统学报,2001(3):72-76,15.
[15]丁津津,高博,刘宁宁,等.智能变电站网络结构分析与VLAN划分方式探讨[J].合肥工业大学学报(自然科学版),2013,36(3):287-291.
[16]张志丹,黄小庆,曹一家,等.基于虚拟局域网的变电站综合数据流分析与通信网络仿真[J].电网技术,2011,35(5):204-209.
[17]嵇建飞,袁宇波,王立辉,等.某110 kV智能变电站合并单元异常情况分析及对策[J].电工技术学报,2015,30(16):255-260.
[18]沈鑫剡.路由和交换技术[M].北京:清华大学出版社,2013:122.